Question for the Automobile Enthusiasts group:

[ret5hd]

I have an old (2003) Ford E350 van. The Idle Validation Switch is going bad. This is an integral part of the gas pedal assembly, not able to purchase separately, nor can you purchase the assembly.

I need to bypass this switch. The wires going to the switch are about the size of a pencil lead, maybe smaller...its been a long time since I stripped a pencil to look at the diameter of the lead.

I do not want to cut the connector off to splice in, so I was looking at things like this (I would call them T-splices):
https://www.amazon.com/Posi-Tap-20-22-Youll-Choose-Amount/dp/B0B3815XSG/ref=sr_1_2_sspa

My question is how do I know what size to purchase? Here is the explanation google gives for measuring the gauge of a wire (and I don't want to do that):

First, make a small cut about 1/2" long and remove the insulation on the automotive wire. Then, count the individual strands of copper and use a micrometer to measure one of the strands. From there, refer to the table below to determine the wire's gauge.

I don't want to cut the wire to find the gauge.

Thanks for any hints.